"I don't think this latest spike in the cycle of provocation and response undermines her whole platform of seeking to somehow re-engage the North, " said John Delury, an analyst at Seoul's Yonsei University.

NPR: SKorea's New Leader Faces NKorea Nuke Crisis

Its scheme, which also suggests greater use of park-and-ride schemes, and better co-ordination of bus, cycle and train routes, is a response to Cardiff council's own local development plan.

BBC: Cardiff Civic Society in congestion charge plan

Such as killings in response to other killings, a cycle of revenge.

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Rather than explaining the cycle in terms of market failure, as Keynes did, real business-cycle theory views a recession as the optimal response by households and firms to a shift in productivity.

ECONOMIST: The causes of booms and busts

Was he right to challenge misinformation with a very strong response, or does this just kind of keep the cycle going?

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Science plays an important role in our response to global issues such as climate change, the hydrological cycle, biodiversity loss, natural hazards and human-induced disasters, population growth, land-use change, migration and urbanisation.

UNESCO: UK National Commission for UNESCO :: Environmental Science

Its earnings typically swing in response to occasional catastrophes like hurricanes and earthquakes, or by the profit cycle (currently at low ebb) in the competitive auto insurance sector.

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